remove unnecessary lines

src/client/styles/scss/theme/_apply-colors.scss

@@ -93,13 +93,6 @@ $link-hover-color: $color-link-hover;
   background-color: $bgcolor-inline-code;
 }
 
-/*
- * Legend
- */
-legend {
-  color: $color-header;
-}
-
 /*
  * Modal
  */